Spax PowerLags 5/16 In. x 4 In. Washer Head Exterior Structure Screw (250 Ct.) Safe-T-Beam variable control

variable control

Shelves may be cut

exterior screws

Used for fastening foamboard

Black Log hex head screws are great for decks

Spax PowerLags 5/16 In. x 4 In. Washer Head Exterior Structure Screw (250 Ct.) Safe-T-Beam variable controlSpax PowerLags Screws have a washer head with T Star Drive and HCR (High Corrosion Resistant) exterior coating. Provides a new level of fastening efficiency and reliability to construction. Engineered specifically for demanding wood to wood structural applications, PowerLags feature patented thread serrations that eliminate pre drilling and dramatically increase installation speed requiring up to 40% less driving torque to increase installation speed.